Counterboring-tool for casks.



No. 810,432. PATENTBD JAN. 23, 1906. F. PFLUGBR & E. CHRISTENSEN.

GOUNTERBORING TOOL FOR GASKS. APPLICATION FILED JUNE 16, 1904.

2 SHEETS-SHEET l.

F. PFLUGER & E. CHRISTENSEN.

GOUNTERBORING TOOL FOR GASKS. APILIOATION FILED mums, 1904.

2 SHEETS-SHEBT 2. I1 if attou UNITED STATES PATENT OFFICE.

FRANK PFLUGER AND EMIL CHRISTENSEN, OF PORTLAND, OREGON.

COUNTERBORlNG-TOOL FOR CASKS- To all 1071,0111, it may concern.-

Be it known that we, FRANK PFLUGER and EMIL CHRISTENSEN, citizens of theUnited States, residing at Portland, in the county of Multnomah andState of Oregon, have invented a new and useful Counterboring-Tool forCasks, of which the following is a specification.

This invention relates to counterboringtools, and has for its object toprovide an improved hand-operated tool of this characterespeciallyadapted for convenient application to a cask, keg, or the like forcounterboring the inner end of the bung-hole thereof and for facing orplaning the exterior of the cask around the bung-hole to form a flatseat for the outer annular flange of the bung.

Another object of the invention is to provide for conveniently settingthe tool so as to counterbore the bung-hole to any desired depthaccording to the varying thicknesses of the staves of different casks,thereby to insure a uniform length of bung-hole in casks having stavesof corresponding thicknesses.

It is furthermore designed to provide for anchoring or locking the stockof the tool to the cask, so as to prevent rotation thereof during thecounterboring action of the tool, and to arrange the parts of the toolso that the counterboring-knife may be manipulated by one hand and thefeed device therefor manipulated by the other hand of the operator.

With these and other objects in view the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accompanying drawings, and particularlypointed out in the appended claims, it being understood that changes inthe form, proporfor the counterboring operation.

tion, size, and minor details may be made within the scope of the claimswithout de parting from the spirit or sacrificing any of the advantagesof the invention.

In the drawings, Figure 1 is an elevation of the tool of the presentinvention fitted in position for facing or planing the exterior of acask around thebung-hole thereof, a portion of the cask being shown insection. a similar view showing the tool anchored or fixed to the caskagainst rotation and set Fig. 3 is a plan view of the tool with theoperating crank-handle removed. Fig. 4 is a detail sectional view of thestock of the tool. Fig. 5 is a detail perspective view of the inner endSpecification of Letters Patent.

Application filed June 16, 1904. Serial No. 213,095.

Fig. 2 is Patented Jan. 23, 1906.

of the spindle which carries the counterboring-knife.

Like characters of reference designate cor responding parts in each andevery figure of the drawings.

The present tool includes an open-ended tubular stock 1, which isprovided at its inner or lower end with an annular flange 2, constituting a base, there being opposite substantially radial bracketarms3 extended outwardly from the stock and the upper face of the base. Alink 4 is pivoted to the outer end of each arm 3, as indicated at 5, andthe free extremity of the link is provided with a transverse spur 6,designed to be driven into a cask, so as to fix the stock againstrotation during a portion of the operation of the tool, as willhereinafter appear. A substantially radial slot or opening 7 is formedin the base 2 and has one wall 8 set at an angle transversely across theopening for the support of a knifeblade 9, which has its cutting edgeprojected at the bottom of the base and provided with an outer roundedcorner 10. In the upper portion of the knife-blade is a longitudinalslot or bifurcation 11, through which a screw 12 is passed into the wall8 of the opening for the purpose of rigidly holding the knife-blade inplace and to permit of endwise adjustment thereof to take up wear uponthe cutting edge of the blade. The top or outer end of the stock isprovided with a camface or spiral edge 13 for use in feeding thecounterboring knife-blade, as will be hereinafter described.

A cylindrical spindle 14 is mounted to rotate and to move in an endwisedirection within the tubular stock and is of a length to project atopposite ends of the stock, the upper or outer extremity of the spindlebeing made non-circular for the detachable reception of a suitablecrank-handle 15, employed for rotating the spindle. The lower end ofthis spindle is provided. with a crank-arm 16, having an uprightbifurcation or opening 17 formed in the outer end thereof, with one wall18 set at an inclination transversely of the opening for the support ofa blade 19, which has its cutting edge projected at the top of thecrank-arm, while the lower end of the blade is provided with alongitudinal slot or bifurcation 20 for the reception of a screw 21,which is set into the wall 18, so as to rigidly hold the blade in placeand at the same time to permit endwise adjustment of the IIO blade totake up wear upon the cutting edge thereof. The outer corner of thecutting edge of the blade is rounded, as indicated at 22.

Above the stock is a sleeve 23, which is mounted to rotate loosely andto move longitudinally upon the spindle, with its lower edge providedwith a spiral 24, disposed for cooperation with the cam-face 13 of thestock, the upper end of this sleeve being provided with an annularseries of projections 25 to constitute a hand-wheel for convenience inrotating the sleeve. A set-collar 26 loosely embraces the spindle abovethe sleeve 23 and is provided with a set-screw 27 to adjustably fix thecollar upon the spindle. It will here be explained that the sleeve 23 issupported upon the upper end of the stock, and the set-collar 26 issupported upon the top of the sleeve, while the spindle 14 is connectedto the collar through the medium of the setscrew 27, whereby the spindleis supported upon the stock, so as not to drop through the same when theparts have been assembled in readiness for use.

For an understanding of the operation of the present tool reference willbe had more particularly to Figs. 1 and 2 of the drawings, wherein hasbeen illustrated a portion 28 of a cask, barrel, or the like, having theusual bung-hole 29 formed therein. Preparatory to applying the tool tothe cask the setscrew 27 is loosened and the spindle lowered through thestock, so as to drop the counterboring-blade 19 below the planer-blade 9a distance greater than the thickness of the stave through which thebung-hole has been formed, after which the set-screw 27 is tightened andthe tool fitted to the cask with the annular boss 30 fitted within thebung-hole and the base 2 against the exterior of the cask, theanchoring-links 4 being thrown upwardly, as shown in Fig. 1, so as notto enga e the cask. l/Vhen thus fitted in place, it will be noted thatthe counterboring-blade 19 is disposed below and out of contact with theadjacent inner wall of the cask, while the planer-blade 9 is in positionto plane or face the exterior of the cask around the bung-hole when theentire tool is rotated by means of the arms 3 and links 4 as handles tocause the lanerblades 9 to travel around the bungllole and plane or cuta smooth flat face or seat upon the exterior of the cask. When theexterior of the cask has been planed or faced to the satisfaction of theoperator, the rotation of the tool is stopped, the links 4 are swungdownwardly, and their spurs 6 driven into the cask, so as to lock or fixthe stock against rotation, and then the counterboringknife 19 is set inthe following manner: The set-screw 27 of the collar 26 is loosened, soas to permit of the s indle 14 being drawn upwardly through t e stockuntil the cutting edge of the counterboring-knife 19 engages the innerwall of the cask, and then the spindle is lowered a distance equal tothe difference between the height of the cam-face 13 on the stock andthe depth of the desired counterbore, when the set-screw 27 is setagainst the spindle, so as to hold the latter in its adjusted osition.The crank-handle is then manipu ated to rotate the spindle, and thehand-wheel 25 is rotated with. the other hand to work the cams of thesleeve 23 over the cams 13 of the stationary stock, thereby to feed thespindle upwardly during its rotation until the counterboring knife orbit engages the inner wall of the cask and cuts into the same to formthe counterbore 32. The rotation of the spindle and the feeding-sleeve23 is continued until the cam thereof slips from or jumps the cam of thestock, whereby the sleeve and the spindle will automatically drop downto their original positions, and thereby carry the counterboring-bit 19away from the cask, and thus limit the operation of the bit, so as toproduce a counterbore of a predetermined depth. It will here be notedthat any depth of counterbore may be had, according to the distance thespindle and the counterboring-bit are lowered through the set-collar 26.Hence when the spindle has once been set it will produce uniformcounterbores in staves of equal thicknesses, and thereby anypredetermined length of bunghole may be formed.

been adjusted it remains fixed in its position upon the spindle, exceptwhen it is necessary to change the depth of the bung-hole to accommodate different sizes of bushings or in changing to a set of caskshaving staves differing in thickness from that of the work upon whichthe tool has been previously en gaged.

Having thus described the construction and operation of our invention,what we claim as new, and desire to secure by Letters Patent, is

1. A tool of the class described comprising a stock, a rotatable andendwise -movable spindle carried by the stock, a counterboringtoolcarried by the spindle, and means to rotate and move the spindle endwisefor a predetermined distance in a direction to actuate thecounterboring-tool, said means capable of being slid in the oppositedirection to quickly withdraw the counterboring tool from the work atthe limit of the endwise-operating movement of the spindle.

2. A tool of the class described comprising a stock, a rotatable andendwise-movable spindle carried by the stock, a counterboring toolcarried by the spindle, and means to rotate and move the spindle endwisefor a predetermined distance in a direction to actuate thecounterboringtool, said spindle being free to gravitate in the oppositedirection It will of course be understood that after the said collar 26has once to quickly withdraw the counterboring-tool from the work at thelimit of the endwise-operating movement of the spindle.

3. A tool of the class described comprising a spindle carrying a cuttingelement, means to rotate the spindle, and means cooperating with thespindle to force the same endwise by a certain amount of rotation and onfurther rotation to disengage and permit free movement of the spindle inthe opposite direction.

4. A tool of the class described comprising a stock having alongitudinal bore and provided with means to lock the stock against 1rotation, a cam upon the stock, a rotatable and endwise-movable spindlemounted in the stock and projected at opposite ends thereof, acounterboring-blade carried by one end of the stock, a cam slidable androtatable upon the spindle in frictional engagement with the cam on thestock, and a stop carried by the spindle to limit endwise movement ofthe movable cam, each cam having an abrupt shoulder for alinement withthe shoulder of the other cam to permit of the spindle being quicklymoved in an endwise direction to withdraw the counterboring-blade fromthe work.

5. A tool of the class described comprising a stock having alongitudinal bore, a fixed spiral cam upon the stock terminating at itsouter end in a receding shoulder, a rotatable and endwise-movablespindle mounted in the bore of the stock and projected at opposite endsthereof, a counterboring-blade carried by one end of the spindle, a camslidable upon the spindle in frictional engagement with the cam of thestock and provided with a spiral surface terminating at its outer end ina receding shoulder,- a stop carried by the spindle to limit endwisemovement of the movable cam, and means for rotating the spindle, theslidable cam capable of tripping from the fixed cam when their recedingshoulders are brought into alinement.

6. A tool of the class described comprising a stock having alongitudinal bore, a fixed cam upon the stock provided with a spiralsurface terminating at its upper end in a pendent shoulder, a rotatableand endwisemovable spindle mounted in the bore of the stock andprojected at opposite ends thereof, a counterboring-blade carried by oneend of the spindle, a cam slidable upon the spindle and provided with aspiral under face in frictional engagement with the spiral face of thefixed cam and terminating at its lower end in an upright shoulder, astop carried by the spindle to limit upward movement of the movable cam,and means for rotating the spindle, the movable cam capable ofautomatically tripping from the fixed cam by gravitation when theshoulders of the two cams are brought into alinement.

7. A tool of the class described comprising a stock having alongitudinal bore, a cam upon the stock, a rotatable and endwise-movablespindle mounted in the bore of the stock and projected at opposite endsthereof, a counterboring-blade carried by one end of the spindle, a camslidable upon the spindle and in frictional engagement with the cam ofthe stock, a stop adjustable longitudinally upon the spindle to limitendwise movement of the slidable cam, and means to rotate the spindle,the slidablecam capable of rotation independently of the spindle to movethe same in an endwise direction by engagement of the slidable cam withthe fixed cam and the stop on the spindle.

8. A tool of the class described comprising a stock having alongitudinal bore and provided with an outer spiral edge forming a cam,a rotatable and endwise-movable spindle mounted in the bore of the stockand projected at opposite ends thereof, a counterboring-blade carried byone end of the spindle, an endwise-movable sleeve mounted upon thespindle and provided with a spiral edge in frictional relation with thespiral edge of the stock and also provided with a handle for rotatingthe sleeve, a stopcollar adjustable longitudinally upon the spindle inthe path of the slidable movement of the sleeve, and means to rotate thespindle, the sleeve being rotatable independently of the spindle to feedthe latter endwise during its rotatable movement.

9. A tool of the class described comprising a tubular stock having aspiral outer edge, means carried by the stock for engagement with a caskto prevent rotation of the stock and capable of being moved out ofengagement with the cask to permit rotation of the stock, a planer-bladecarried by the stock, a rotatable and endwise-movable spindle proj ectedat opposite ends of the stock, a counterboring-blade carried by one endof the spindle, an endwise-movable sleeve mounted upon the spindle andhaving a spiral edge in cooperative relation with-the spiral edge of thestock, a stop-collar adjustable longitudinally upon the spindle to limitendwise movement of the sleeve and capable of holding the latter inlocked engagement with the spiral of the stock to interlock the latterand the spindle for simultaneous rotation, and means connected to thespindle for rotating the same, the sleeve also capable of rotationindependently of the spindle to feed the latter in an endwise direction.

10. A tool of the class described comprising a stock having acask-engaging anchoring device capable of being engaged with the cask toprevent rotation of the stock and also capable of being disengaged fromthe cask to permit rotation of the stock, a planerblade carried by thestock, a rotatable and endwise shiftable spindle carried by the stock, acounterboring-blade carried by the spindle, means to rotate and feed thespindle in an endwise direction upon the stock, and means to interlockthe spindle and the stock for simultaneous rotation.

11. A tool of the class described co1nprising a stock having aplaner-blade, anchorlinks pivoted to the stock and having spurs to entera cask and anchor the stock against rotation, a rotatable andendwise-movable spindle carried by the stock, a counterboringbladecarried by the spindle, means to rotate and to feed the spindle in anendwise direction independently of the stock, and means to interlock thestock and the spindle for simultaneous rotation.

12. A tool of the class described comprising a tubular stock having aterminal annular flange provided with an opening, a concentric tubularguide-boss at the flanged end of the stock, a planer-blade fitted in theopening of the flange, substantially radial arms projected from thestock, anchor-links pivoted to the arms and provided with lateralterminal spurs, the other end of the stock having a spiral edge, arotatable and endwiseanovable spindle projected in opposite directionsthrough the stock and provided at one end with a crank-arm, acounterboring-blade carried by the crank-arm, an endwise-movable sleevemounted upon the spindle and provided with a spiral edge in cooperativerelation with the spiral of the stock, a stop-collar adjustablelongitudinally I upon the spindle in the path of the sleeve and ca ableof holding the latter interlocked with t e stock for simultaneousrotation of the latter and the spindle, and a crank to rotate thespindle, the sleeve also capable of rotation independently of thespindle to feed the latter in an endwise direction.

13. A tool of the class described comprising a stock which is capable ofrotation and provided with a planer-blade, a counterboring-blade capableof adjustment to a position out of contact with the work during operation of the planer-blade, and means to bring the counterboring-bladeinto engagement with the work and to swing the same around the stock asa center after the completion of the operation of the planenblade.

14. A tool of the class described including a planer-blade for theexterior of a cask, a counterboringblade for the interior of a cask, andmeans to successively operate the blades.

15. A tool of the class described comprising a stock which is capable ofrotation and provided With a planer-blade for operation upon theexterior of a cask, and an endwisemovable spindle mounted to rotateindependently upon the stock and provided with a crank-arm carrying acounterboring-blade for operation upon the interior of a cask.

In testimony that we claim the foregoing as our own we have heretoaflixed our signatures in the presence of two witnesses.

FRANK PFLUGER. EMIL CHRISTENSEN. Witnesses:

H. W. GAMMIE, J. E. BoYNroN.

